Lathyrus odoratus Beautiful white washed with mauve A modern Grandiflora sweet pea - with scent as well as scale - in the most beautiful white, washed with mauve, and reminds me of delicate Venetian marbled paper. I love it. From the Sarah Raven's Cut Flower range. Height: 180cm (6ft) Plant Class: Hardy Annual (HA). Habit: Climber. Average 20 seeds Category - Seeds S - Z.